1)polymorphism[英][,p?li'm?:fiz?m][美][,pɑl?'m?rf?zm?]多晶型现象
1.Polymorphism generally exists in solid drugs,which is a very important factor for the quality and effect of drugs,so it is necessary to study polymorphism on early stage of drugs development.多晶型现象在固体药物中普遍存在,多晶型是影响固体药物质量和疗效的重要因素之一。
2.Based on the quality problems of the glycine product made in China, such as poor crystal morphology, mixed polymorph and asymmetry CSD, the crystallization process and the polymorphism were investigated and analyzed systematically.针对国内甘氨酸生产存在的晶体形态差,晶型不单一,粒度分布不均匀等问题,本文对甘氨酸的结晶过程及多晶型现象进行了系统的实验研究和理论分析。
3.Hence, investigation on polymorphism is important for the use and process of D-mannitol and for the study of crystallization theory.因此,对其多晶型现象进行研究不仅具有重要理论价值,而且具有现实的实际应用价值。
英文短句/例句
1.Study on the Polymorphism and Caking Mechanism of Glycine;甘氨酸多晶型现象与产品结块机理的研究
2.Study on New Crystallization Technology and the Polymorphism of Nimodipine;尼莫地平结晶新工艺及多晶现象的研究
3.relating to or characterized by pleomorphism.关于或具有多晶现象特征。
4.Polymorphism in elements is called allotropy.把元素中的多晶现象称为同素异构性。
5.Crystallization of a compound in at least two distinct forms.多晶形一种化合物以至少两种不同的形态结晶的现象
6.The Energy Band Structure and Multistability of Nonlinear Superlattice;非线性超晶格的能带结构和多稳态现象
7.Water modeling study on the meniscus dynamic distortion of molten steel level in a CSP thin slab casting mouldCSP结晶器内钢液面动态失稳现象的水模型实验
8.macromolecular isomorphism高分子异质同晶现象
9.The "Reversal" Phenomenon of Crystalline Pattern on AlOOH Nano-whiskers Growth纳米AlOOH晶须生长结晶形态的“逆转”现象
10.Isomorphism between crystalline forms of two dimorphic substances.同二晶现象两种双晶物质的晶体形式的同形性
11.An Explanation of the Polysemy in View of the Prototype Theory;原型范畴理论对一词多义现象的解释
12.Phase-field model of dendrite growth of multicomponent alloy with multiple grains多元合金多晶粒枝晶生长的相场模型
13.The existence, especially in the solid state, of two or more crystalline or molecular structural forms of an element.同素异形现象一种元素中有两种或更多的晶体或分子结构形式,特别是以固态存在的现象
14.Consistency in crystalline form with variation in chemical composition.异质同形现象,异质同晶现象晶体形式相同但化学组成不同
15.A new way of uniform splitting of the optical power by directional coupling between the photonic crystal waveguides一种实现光子晶体波导定向耦合型多路光均分的新方法
16.The science of crystal structure and phenomena.晶体学一门研究晶体结构和现象的学科
17.Pictures of many models of the bicycles are flashed on the screen.荧光屏上出现了许多种型号的自行车图象。
18.Polymorphism of Karyotype of Bactrian Wapiti in Beijing Zoo北京动物园中亚马鹿的染色体组型多态现象
相关短句/例句
polymorphism[英][,p?li'm?:fiz?m][美][,pɑl?'m?rf?zm?](同质)多晶型,(同质)多晶(现象),多型性
3)polymerism[p?'lim?rizm]多晶形现象
4)polymorphism[英][,p?li'm?:fiz?m][美][,pɑl?'m?rf?zm?]多型现象
1.Sericinus montelus Gray is an ornamental insect with exploitability, which overwinters as diapause pupae, and adults have polymorphism.丝带凤蝶Sericinus montelus是一种有开发价值的观赏昆虫,以蛹滞育越冬,成虫存在多型现象。
2.Special attention had been paid to the chemical mimicry, light mimicry, sound mimicry, mimicry polymorphism and complex.综述了昆虫拟态的常见类型及其研究动态 ,特别对光学拟态、声学拟态、化学拟态和拟态的多型现象及复杂性作了较详细的介
5)isomorphism[英][,ais?u'm?:fiz?m][美][,a?s?'m?rf?zm?]同晶型现象
6)wing polymorphism翅多型现象
1.The wing polymorphism in rice grasshopper,Oxya yezoensi Shiraki(Orthopera∶Catantopidae);小翅稻蝗(Oxya yezoensis Shiraki)翅多型现象浅释
延伸阅读
多晶型现象多晶型现象polymorphism一种物质能以两种或两种以上不同的晶体结构存在的现象。又称同质多象或同质异象。1798年M.H.克拉普罗特发现方解石和文石的组成都是碳酸钙,方解石属于三方晶系,是在较低温度下形成的,文石属于正交晶系,是在较高温度下形成的。1912年M.von劳厄发现X射线衍射后,就可以从晶体结构的角度认识多晶型现象。组成相同、晶体构型不同的物质叫作多晶型体,它们可通过相变而彼此转变。单晶硅和多晶硅都是由元素硅形成的,但它们不是多晶型体,因为它们的晶体构型相同,只是晶体尺寸不同。各种多晶型体具有不同的物理、化学性质,如熔点、硬度、稳定性、溶解速率等的差异。金刚石和石墨的化学成分都是碳,前者属立方晶系,硬度大、透明、不导电,后者属六方晶系,硬度小、不透明、可导电。又如在甾醇类、磺胺类和巴比妥类药物中,由于多晶型体的不同,药效的差别就很大。构型不同的多晶型体称为构型多晶型体,构象不同的多晶型体称为构象多晶型体。多晶型体可能具有不同的颜色,称为颜色多晶型现象,例如,有机颜料酞菁铜的多晶型体有8种(α型、β型、γ型、……)。它们的色光是不同的。